Roof flashing



`25 Figure 1 is a i named Mu. 1 1, 1930 UNITED sTATEs normar r. xNox, or ATLANTA, GEORGIA noor- FLASHING Application led December 9, 1927. Serial No. 238,950..

This invention relates to improvements in roof flashings, one object of the invention being the provision of a novel arrangement by means of which the flashing of the roof adj acent the fire-wall or the wall which generall projects above the roof is properly anchore and at the Sametime, when it is necessary to renew the roof,pthe lock for' attaching the 'flashing to the wall, remains in said wall and is provided with means -for properl 'securing the flashing in place, thus ren ering it unnecessary to di the mortar from between the bricks for t e insertion of theedge ofthe present ty of iashing and then the l5 re-cementing of t e joint.

A further object of this invention is the provision of a novel arrangement of flashing lock which is placed in the wall simultaneously with the laying of thebricksthereof and -2.0 which can also be used ina reinforced concrete wall, where desirable, by anchoring the same in the mixed concretebefore the coalescence thereof.

In' the accompanling drawings 'agram'matic perspective `view of a rtion of the roof sheathing and wall showing the present invention in use thereon; y

Figure 2 is a top plan `view of the flashing -vaolock per se; and

Figure 3 is a section taken on line 3 3 of Figure 2 showing in dotted lines the position of the adjacent portions ofthe wall and one of the strips used in conjunction with the lock andformin part of the flashing.

Referring to t e drawings, the numeral 5 designates the roof sheathing and 6 the brick wall, which wall, however, may be taken as indicative of any masonry wall made either of brick or reinforced concrete.

After a certain height of wall has been built, in this instance, as shown, three layers of brick, the top layerhas positioned thereon the present flashing lock strip 10, the same 46 being embedded in the mortar 9 between the layers`7 and 8 of the bricks with the yconcave projections 11 forming anchors against 1on- `gitudinal or horizontal displacement of the same when the mortar has set, the upstanding rear edge 12 being disposed between the front and rear layers of the brick and adjacent to the rear lowercorner or edge of the row of bricks 8. In this way, the strip is anchored throughout the full length of the wall with the bendable projecting end 13 projected beyond theface of the wall, as and for the purpose hereinafter set forth. It will be noted that the distance between the angles of the edges 12 and 13 is substantially thel width of the brick, or, in practice, slightly more than four inches, thus providing a strip that fits neatly and firmly in the wall.

After this much of the wall has been built and the flashing strip 10 is firmly in'vplace due to the coalescence of the mortar or cement, the strip 14, which is L-shaped' in erossl section', has the bent edge disposed upon the upper edge of the layer 7 of bricks eneath the forward edge of the strip 10, the mortar having been placed uponthe brick 7 `so as '70 not to project into this space. The bend'able edge 13 isnow bent downwardly upon the strip 14 and the strip 14 is then underlaid by the under portion of the relatively large L- shaped cross-sectional stripA 16 ,whose lower bent edge fits into the right-angled bend 17 of the sheet metal roof 18.

It will thus be seen that with this construction the roof 18 and the respective strips 14 and 16 are properly positioned without the necessity of removing the mortar between the layers of the bricks and the insertion of the upper edge of the strip 14 which is the usual practice, it merely being necessary to place the edge of the stri 14 between the projecting end 13 of the ashing lock strip 10 and the bending of 'this edge 13 downwardly of and upon thestrip 14 so as to lock the flashing in proper position against the'wall.

From the foregoing description, taken in connection with the drawings, it is evident that with a flashing lock strip as herein set forth the same may be used either with brick constructions, as illustrated, -or be placed in the concrete of a reinforced concrete fire-wall or projecting wall and have itself anchored therein so that the bendable edge 13 will al-V ways be presented in the proper position to secure the upper edge of the flashing of theroof in place, and where itis necessary to renew roofings, it is unnecessaryito remove the flashing lock strip fromthe wall.

Although this invention is more particularly designed for use upon composition roofs, such as those that are made of tar and gravel roof paper, that is, a roong composed of asphalt saturated felt built u in layers with each layer covered with ad 'tional tar as phalt, it is apparent that the same can be used upon sheet metal rooting also.

I claim A flashing lock strip comprisinga sheet having one edge |`bent at substantially ri ht angles to the body and with the opposite e ge bendable in an opposite direction, the distance between the angles of the two bends being substantially the width of a brick so that the stripl can be placed in a brick wall with the right-angled edge embracing the angle of the brick with the other angle aligned with the front face of the brick and inclined downwardly in the direction it is to be bent the body of the strip between the angles `o the two edges being provided with a plurality of downwardly pressed projections spaced from the forward edge to provide a groove for freely receiving the edge of acooperating flashing strip.

In testimony whereof I have hereunto set my hand. f

ROBERT F. KNOX 

